Advisory severityHigh7.5Red Hat Linux

High [CVE-2026-15816] root code execution via unescaped error message written to sourced emergency hook script in die

This high-severity Red Hat Linux advisory covers CVE-2026-15816 affecting Red Hat Enterprise Linux 10.0 Extended Update Support, Red Hat Enterprise Linux 8.8 Telecommunications Update Service, Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions.

Aggregated and source-linked by VulniPulse. Data sources, validation and limitations.

CVE-2026-15816 Source published Aug 7, 2026Source updated Aug 5, 2026

VulniPulse record published Aug 7, 2026Record updated Aug 24, 2026

CVE-2026-15816

Affected products & platforms

Red Hat LinuxUnclassified

Open source advisory

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Summary

root code execution via unescaped error message written to sourced emergency hook script in die(). Red Hat rates this important (CVSS 7.5).

Weakness: CWE-78. Red Hat lists fixing advisory RHSA-2026:54575 with package dracut-0:057-54.git20250423.el9_4.3, dracut-0:057-25.git20250717.el9_2.2, dracut-0:057-89.git20250311.el9_6.1, dracut-0:105-4.el10_0.1.

Affected products named by the advisory: Red Hat Enterprise Linux 9; Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 8.

Affected products named by the advisory: Red Hat Enterprise Linux 10.0 Extended Update Support; Red Hat Enterprise Linux 8.8 Telecommunications Update Service; Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions; Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions; and 18 more.

Affected versions

No affected-version range was extracted from the source record. The vendor advisory is authoritative — check it before change work.

Official advisory · high-confidence parse· fetched 2 months ago·verify at source

Fixed versions

dracut-0:057-54.git20250423.el9_4.3
dracut-0:057-25.git20250717.el9_2.2
dracut-0:057-89.git20250311.el9_6.1
dracut-0:105-4.el10_0.1
dracut-0:107-9.el10_2
dracut-0:049-246.git20260728.el8_10
dracut-0:057-120.git20260728.el9_8
RHSA-2026:54575

Official advisory · high-confidence parse· fetched 2 months ago·verify at source

Mitigation checklist

Recommended fix / mitigation

Restrict DHCP server access on networks used for network boot (DHCP snooping, dedicated/trusted provisioning VLANs) until a fix is available.

Official advisory · high-confidence parse· fetched 2 months ago·verify at source

Sources

Official and corroborating records used to build this advisory.

Red Hat Security Data APIofficial
Official vendor source used to discover this advisory; it remains the authority for affected products and remediation. Discovered from the machine-readable feed https://access.redhat.com/hydra/rest/securitydata/cve.json; this link opens the Red Hat Linux advisory index instead of the raw feed document.
Red Hat Linux
Official vendor advisoryofficial
Official advisory page fetched and parsed; accepted detail fields are attributed to this page.
Red Hat Linux
CVE.org CNA affected-product recordCVE.org
Structured CNA affected[] data independently confirmed the affected product scope; native advisory content remains authoritative.
CVE Program

Cross-references

Validate CVE metadata against the authoritative registries.

CVE-2026-15816NVD CVE.org MITRE

Discussion(0)

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